Final answer:
Education was required until the age of 18 to ensure literacy and eliminate child labor.
Step-by-step explanation:
By the end of the century, education was required until the age of 18 to ensure literacy. In industrialized societies, basic literacy became an important goal for middle-class parents to maintain their position in society. The introduction of compulsory education laws in the United States and Europe helped eliminate child labor and move children from factories to schoolrooms.